function showMenu(sName) {
	if (document.getElementById) {
		var a = document.getElementsByTagName('ul');
		for (var i = 0; a.length > i; i++) {
			if (a[i].className == "dropdownmenu" && a[i].id != sName) {
				a[i].style.display = 'none';
			};
		};
		var o = document.getElementById(sName);
		if (o) {
			o.style.display = 'block';
		};
	};
};
function hideMenu(sName) {
	var o = document.getElementById(sName);
	o.style.display = 'none';
};